Eyeglasses.



' No. 884,368. PATENTED APR. 14, 1908.

H. W. DERRICK.

EYEGLASSES. APPLICATION FILED JAN. 10, 190B.

HERBERT W. DERRICK; OF BOSTON, MASSACHUSETTS.

EYEGLASSES.

To all whom it may concern:

Be it known that I, HERBERT W. DERRICK,

a.citizen of the United States, and residentof Boston, in the county of Suffolk and State of Massachusetts, have invented an Improvem'ent in Eyeglasses, of which the folowmg description, in connection with the accompanying drawings, is a specification, like letters on the drawingsrepresenting like parts.

My invention relates to that class of eye glasses in which the op'posite'lenses are held together by a yielding Connection or s ring bridge, the latter receiving its main yie ding or springing action by the formation at its opposite ends.

The principal objects of my invention are to secure extra spring or yield in a horizontal plane, provide balanced movement and ri gidity and steadiness against improper twistmg or movement.

- double horizontal loop or coil which straddles or embraces the bridge or nose-spring at each end of the latter, said two loops dpreferably terminating in two arms clanip'e' into the holding groove" of a usual .lens stud, thereby rendermg it, practically impossible for the. parts'to work loose.

The double loops, 2'. e." two loops,extending in a-horizontal plane, one located above the bridge and the other below the bridge, ive greatsteadiness and revent the lenses rom moving in any but a orizontal lane. Also, the two arms, one on each si e of the holding. screw, give rigidity and aid materially in holding the .nose-'- guard flat and steady.

Further advantages, and the construc-" t1 onal detailsv of various selected embodi- .m'ents ofmy invention will appear more fully drawings.

In the drawings, Figuresl and 2 show respectively in front elevationfa'nd top plan one embodiment of the invention; Figs.'3, 4,

and .5' aresectional views showing in end elevation the constructional details of three embodiments of'the' invention, the nose guard ineach instance being shown. as detached in 'orde'r'to reveal thefurther constructional d'epart of the invention; Fig. 6

tails of the main is a; view similar toFig. 2 of another form of the invention; and Fig. 7 is. an enlarged perspective view ofv onef'orm of the double loop.

The general construction-of the eye glass may beiof any usual: or preferred kind, being Specification of Letters Patent. I Application filed January 10, 1908.

To this end, I provide a course. of the following description,- 'taken- Wlth reference to the accompanying form of my.

' and'are thence bent -in su pose Patented A ril 14, 1908. s erialNo. 410,07s.

.herein shown as comprising two rimless lenses-1., each provided with a fastening stud 2 secured by usual screws As shown in Figs. 1-4, thefastening studs have a vertically grooved head 4,'whereas in Figs. 5 and 6 the stud is provided with a horizontal or transversely grooved head 5, The bridge or nose s ring 6 may be of any shape and kind desirec preferably havingv more or lessspring itself, although my invention resides in providing extra spring or yielding capacity at the ends of this bridge. For this urpose I provide two loops or horizontal coi s7, 8 extending from the end of the bridge at 9, and

thence curving around horizontally 'and'di verging su fiiciently to permit the coil 7 to pass over the bridge and the coil 8 topass under said bridge. In other words, .the two coils come. together atone end, and constitute, or arepermanently connected to,'the end of the bridge, and they diverge slightly at their other end and straddle or embrace the same ends of the bridge.

The opposite ends of the brid e are bent -in a'horizontal curve. forwar ly and thence toward each other, and thence rearwardly transversely ofand embracing the body of the bridge, and the slots provided for the passage of the bodyof the ridge between the two coils constitute guiding means for compelling thenormal yielding action to behorizontal. These two coils in Figs. 1, 2, 3, and 7. have'their freeends 10, 11 bent parallel andextended downwardly at the opposite 'sides of the box or stud head 4 incposition to be clamped by a set screw 12 an an adjacent portion of a nose guard 13,

thereby providing an exceedingly strong,

rigid. immovable joint.

In Fig. 4 the free ends of the two coils 7, 8- 'are bent farther apart at 14,15 than in the invention shown in Figs. 1-3, parallel to each other, but in opposite directions, as clearly shown at 16, 17. in said Fig. 4 being secured in substantially the same manner by a; nose guard 18, an'din Figs. 5 and 6 the two coils 7 and 8 have theirfre'e ends 19,20 extended me straight rearward direction to the position best shown in Fig. 5, where they are clam ed in the stud head 5'by suitable means bstantially the same manner as previously. .While I prefer that the two coils shall be made integrally with each'other, this construction .is not necessary in all cases, and in Ei .61 have shown the bridge as com d of two wires-twisted together, one of parallel the same as in Fig. 5.- Inthe construction shownin Figs. 13, the loops are located being located either above or'bel0w, or at. the

abovethe box or stud whereas in the con struction of Figs. 4-6 they are located in f-bridge, the latter being connected to said stud front of the stud, and hence produce a some:

what neater efifect, although I. wish it understood thatthe particular location of the loops may be varied, and I donot limit the loopst'o p front or at the rear of the studs. but for some.

Jnrposes I refer the construction shown inig. 4, whic is exceedingly compact, strong, andneat.

The double loop at the end of the springer bridge is not only more resilient, butit makes j the glasses more durable. The two arms-se'y Y cured in the box rheadofthestud, one at one side and the other atithe other-side of the .box,-being' fastened by the'small screw stud and the' ad'ja'cent portion of the nose guard,-

'-n'ot only aid in holding the guard hat, but

give great rigidity and'steadiness o1"- move-v ment tothe adjacent lens, onespring end pressin against the other springend so as to prevento alarge degree twisting'andim-- proper movements, thereby. restricting the main yielding movement to a si-m'pleback and forth horizontal {bending at the bridge.

' Notwithstanding the fact that-.my invention providesgreater flexibility, thanzthe usual construction, and gives extra spring at-the ends of the bridge, I accomplish this without introducing any uncertainty of yi'e'lding ac tion, and-,- in "fact, my invention restricts the movement almost entirely to a plane.

As already stated," I 'do' not and a It strict my inventionto the particular arhorizontal rangement and formation '0 arts herein j shown, as it is' ca able of am evariety of .embodiment ,Wit out departing from'thespirit and scope of the invention as set forth in th'e following claims. Having described m'y, -inventio'n, what II, claim as new, and desire to secure by Letters v Patent, is: i

5 '1. In an eye glass,; a lens, a-stud, and a" bridge, the latter being. connected .to said stud, by two springloo'ps extending horizontally approximately parallel, andbranching independehtlyirom the" bridge atonegend, and

each loop having-itsov'vn opposite end conbetween' the stud and adjacent end of the bridge, each loop having two endsythe adj a cent two ends, one 0 each loop, being connected" directly tothe bridge, and the other two ends, one of each loop, b i g connected to said'stud.. r v

by two spring loops extending horizontally approximately parallel, one ofsaid vloops assing transversely aboye the 'adjacentend oithebridge and'thenc'e'to the stud, and the,

- neaththe adjacent erfd of the bridg'e'and thence to the stud.

bridge,the latter being connected to said stud by =two spring loops extending horizontallyapproXimately parallel, one oisai'd loops thence-to the stud, the free ends of said two' vloops being arranged .parallel to each other on other. of said loops .passing'transversely bethence to the stnd',jthe free ends of said two. loops extending substantially parallel in op-' {p.osite directions, and entering the'head oi otherofsaid loops passing transversely be- -4. '-In, an eye -gl ass,--a len s, a stud, and

pass-mg transversely above the adjacent end of the bridge and-thericeto, the'stud, and the other of said loops passing transverselybeneath the adjacent and of theb'ridge and the head of the: stud, and securing means for clamping said free ends said position, v

5. In an eye glass, a lens, astud, and a bridge, the latter being connectedto said' stud by two spring loops extending horizontally approximately parallehone of said'loops In an eye glass, a lens, a stud, and a passing transversely above thea'djacent end of the bridge and thence to the stud, andthe neath the acent. end of the bridge and thefstud from op osite directions, and securing means for c amping said free ends in said osition;

tenings tuds, combine. with a bridge or nose 6.;f'n.an'eyejglass,o posite lenses, and fassprin' having its opposite ends bentin a hori i zonta eurve forwardly and thence toward each other' 'and th ence rearwardly' transversely 0i and embracing the bo'dy' of the bridge, each end being provided with a 'guid-' ing slot 'to'perrnit-the bridge to yield horizontally withrelation to the free endof said curved portion, the latter-beingsecured to the adjacent stud;

'In' testimony whereof, I have signed-my lens, ,astud, a bridge;

two subscribing witnesses.

Witnesses:

JAMns l; MoEvor, WILLIAM G.;WI LK1Ns.

- HERBERT W. nnnnroxl 1 10 *nameto thisispecification, -in the 'presenceof 

